#include<stdio.h>
int main()
{
	int a = 4;
	switch (a)
	{


	default:
		printf("nothing\n");
		//break;
	case 1:
		printf("1");
		break;
	case 2:
		printf("2");
		break;
	case 3:
		printf("3");
		break;
		


	}


	return 0;
}